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Getting Started with Citrix NetScaler
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Deploy a Citrix NetScaler VPX instance
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Install a Citrix NetScaler VPX instance on Microsoft Hyper-V servers
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Install a NetScaler VPX instance on Linux-KVM platform
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Prerequisites for Installing NetScaler VPX Virtual Appliances on Linux-KVM Platform
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Provisioning the NetScaler Virtual Appliance by using OpenStack
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Provisioning the NetScaler Virtual Appliance by using the Virtual Machine Manager
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Configuring NetScaler Virtual Appliances to Use SR-IOV Network Interface
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Configuring NetScaler Virtual Appliances to use PCI Passthrough Network Interface
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Provisioning the NetScaler Virtual Appliance by using the virsh Program
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Deploying NetScaler VPX Instances on AWS
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Upgrade and downgrade a NetScaler appliance
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Overriding Static Proximity Behavior by Configuring Preferred Locations
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Example of a Complete Parent-Child Configuration Using the Metrics Exchange Protocol
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Configuring Global Server Load Balancing for DNS Queries with NAPTR records
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Using the EDNS0 Client Subnet Option for Global Server Load Balancing
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Persistence and persistent connections
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Advanced load balancing settings
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Gradually stepping up the load on a new service with virtual server–level slow start
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Protect applications on protected servers against traffic surges
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Use source IP address of the client when connecting to the server
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Set a limit on number of requests per connection to the server
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Configure automatic state transition based on percentage health of bound services
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Use case 2: Configure rule based persistence based on a name-value pair in a TCP byte stream
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Use case 3: Configure load balancing in direct server return mode
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Use case 6: Configure load balancing in DSR mode for IPv6 networks by using the TOS field
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Use case 7: Configure load balancing in DSR mode by using IP Over IP
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Use case 10: Load balancing of intrusion detection system servers
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Use case 11: Isolating network traffic using listen policies
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Use case 14: ShareFile wizard for load balancing Citrix ShareFile
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Configuring a CloudBridge Connector Tunnel between two Datacenters
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Configuring CloudBridge Connector between Datacenter and AWS Cloud
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Configuring a CloudBridge Connector Tunnel Between a Datacenter and Azure Cloud
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Configuring CloudBridge Connector Tunnel between Datacenter and SoftLayer Enterprise Cloud
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Configuring a CloudBridge Connector Tunnel Between a NetScaler Appliance and Cisco IOS Device
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CloudBridge Connector Tunnel Diagnostics and Troubleshooting
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Application Layer Gateway for RTSP Protocol
Real Time Streaming Protocol (RTSP) is an application-level protocol for the transfer of real-time media data. Used for establishing and controlling media sessions between end points, RTSP is a control channel protocol between the media client and the media server. The typical communication is between a client and a streaming media server.
Streaming media from a private network to a public network requires translating IP addresses and port numbers over the network. NetScaler functionality includes an Application Layer Gateway (ALG) for RTSP, which can be used with Large Scale NAT (LSN) to parse the media stream and make any necessary changes to ensure that the protocol continues to work over the network.
How IP address translation is performed depends on the type and direction of the message, and the type of media supported by the client-server deployment. Messages are translated as follows:
- Outbound request—Private IP address to NetScaler owned public IP address called LSN IP address.
- Inbound response—LSN IP address to private IP address.
- Inbound request—No translation.
- Outbound response—Private IP address to LSN pool IP address.
Limitations of RTSP ALG
The RTSP ALG does not support the following:
- Multicast RTSP sessions
- RTSP session over UDP
- Admin partitions
- NetScaler clusters
- RTSP Authentication
- HTTP tunneling
Configuring RTSP ALG
Configure RTSP ALG as part of the LSN configuration. For instructions on configuring LSN, see Configuring DS-Lite. While configuring LSN, make sure that you:
- Set the following parameters while adding an LSN application profile:
- IP Pooling = PAIRED
- Address and Port Mapping = ENDPOINT-INDEPENDENT
- Filtering = ENDPOINT-INDEPENDENT
- Enable RTSP ALG in the LSN group
- Create a RTSP ALG profile and bind the RTSP ALG profile to the LSN group
To enable RTSP ALG for an LSN configuration by using the CLI
At the command prompt, type:
add lsn group <groupname> -clientname <string> [-rtspalg ( ENABLED | DISABLED )]
show lsn group <groupname>
To enable RTSP ALG for an LSN configuration by using the CLI
At the command prompt, type:
add lsn rtspalgprofile <rtspalgprofilename> [-rtspIdleTimeout <positive_integer>] -rtspportrange <port[-port]> [-rtspTransportProtocol (TCP|UDP)]
show lsn rtspalgprofile <rtspalgprofilename>
Sample RTSP ALG Configuration
The following sample DS-Lite configuration, RTSP ALG is enabled for TCP traffic from B4 devices in the network 2001:DB8::4:0/96.
Sample RTSP ALG Configuration:
add lsn client LSN-DSLITE-CLIENT-5
Done
bind lsn client LSN-DSLITE-CLIENT-5 -network6 2001:DB8::4:0/96
Done
add lsn pool LSN-DSLITE-POOL-5
Done
bind lsn pool LSN-DSLITE-POOL-5 203.0.113.61 - 203.0.113.70
Done
add lsn ip6profile LSN-DSLITE-PROFILE-5 -type DS-Lite -network6 2001:DB8::5:6
Done
add lsn appsprofile LSN-DSLITE-APPS-PROFILE-5 TCP -ippooling PAIRED –mapping ENDPOINT-INDEPENDENT -filtering ENDPOINT-INDEPENDENT
Done
add lsn rtspalgprofile RTSPALGPROFILE-5 -rtspIdleTimeout 1000 -rtspportrange 554
Done
add lsn group LSN-DSLITE-GROUP-5 -clientname LSN-DSLITE-CLIENT-5 -portblocksize 1024 -ip6profile LSN-DSLITE-PROFILE-5 -rtspalg ENABLED
Done
bind lsn group LSN-DSLITE-GROUP-5 -poolname LSN-DSLITE-POOL-5
Done
bind lsn group LSN-DSLITE-GROUP-5 -appsprofilename LSN-DSLITE-APPS-PROFILE-5
Done
bind lsn group LSN-DSLITE-GROUP-5 -rtspalgprofilename RTSPALGPROFILE-5
Done
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